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Mixed Weak Galerkin Method for Heat Equation with Random Initial Condition
Joint Authors
Chai, Shimin
Zou, Yongkui
Zhou, Chenguang
Zhang, Fengshan
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-01-28
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This paper is devoted to the numerical analysis of weak Galerkin mixed finite element method (WGMFEM) for solving a heat equation with random initial condition.
To set up the finite element spaces, we choose piecewise continuous polynomial functions of degree j+1 with j≥0 for the primary variables and piecewise discontinuous vector-valued polynomial functions of degree j for the flux ones.
We further establish the stability analysis of both semidiscrete and fully discrete WGMFE schemes.
In addition, we prove the optimal order convergence estimates in L2 norm for scalar solutions and triple-bar norm for vector solutions and statistical variance-type convergence estimates.
Ultimately, we provide a few numerical experiments to illustrate the efficiency of the proposed schemes and theoretical analysis.
American Psychological Association (APA)
Zhou, Chenguang& Zou, Yongkui& Chai, Shimin& Zhang, Fengshan. 2020. Mixed Weak Galerkin Method for Heat Equation with Random Initial Condition. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1201565
Modern Language Association (MLA)
Zhou, Chenguang…[et al.]. Mixed Weak Galerkin Method for Heat Equation with Random Initial Condition. Mathematical Problems in Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1201565
American Medical Association (AMA)
Zhou, Chenguang& Zou, Yongkui& Chai, Shimin& Zhang, Fengshan. Mixed Weak Galerkin Method for Heat Equation with Random Initial Condition. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1201565
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201565